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Jul. 12. 2011 1/19
* This specifications are subject to be changed without notice
http://www.ad-tech.co.kr
ADT6610
FEATURES
• Constant output current range : 5mA to 100mA with three external resistors
• 3 channel constant current LED sink driver for RGB LED clusters
• Two wire only transmission interface
- Clock re-generation to recover the clock duty cycle
• 8/12/16bit grayscale PWM control
• Supply voltage range : 5 ~ 18V
• Embedded voltage regulator : VDD generation
• Maximum sinking output voltage : 18V
• 5V CMOS compatible input
• Package : SOP16, SSOP16
• Maximum serial input frequency : 10MHz
• Built in internal RC oscillator is 10MHz
• RoHS-compliant package
APPLICATION
• Channel sign• Architectural lighting• LED curtain display or LED strip• Neon sign replacement
16SOP
16SSOP
Jul. 12. 2011 2/19
* This specifications are subject to be changed without notice
http://www.ad-tech.co.kr
ADT6610
PIN DESCRIPTION
PIN CONFIGURATION
PIN NO. PIN NAME FUNCTION
1 DI Input terminal for serial data input.
2 CKI Input terminal for serial clock input.
3
STSEL
Waiting time selection pin for strobe signal.
L 20us
H 5ms
4,5
MODE0, MODE1
Input data transfer mode selection.
MODE1 MODE0 descriptions
L L 8 bit luminance data transfer
L H 12 bit luminance data transfer
H L Reserved
H H 16 bit luminance data transfer
6,7,8REXTA, REXTB, REXTC
External resistors are connected between those pins and GND for driver current setting.
9,10,11 OUTC, OUTB, OUTA Output terminal for constant current output.
12 GND GND
13 VDD Regulator output voltage.
14 VCC High supply voltage.
15 CKO Output terminal for serial clock output.
16 DO Output terminal for serial data output when CKI is ‘L”.
DI
CKI
STSEL
MODE0
MODE1
REXTA
REXTB
REXTC
DO
CKO
VCC
VDD
GND
OUTA
OUTB
OUTC
1
2
3
45
6
7
8
16
15
14
1312
11
10
9
Jul. 12. 2011 3/19
* This specifications are subject to be changed without notice
http://www.ad-tech.co.kr
ADT6610
BLOCK DIAGRAM
ReferenceCurrent
OUTA OUTB
REXTA
DI
CKI
DO
PWMCounter
48 bit Shifter Register
16 bit Display D
ata Register
16 bit Display D
ata Register
16bit Control D
ata Register
Com
parator A
Com
parator B
Com
parator C
OUTC
16 16
REXTB
REXTC
Oscillator
CKO
RegulatorVDD
VCC
StrobeGenerator
24/36/48 bit Data Register
16
BitSelection
MODE0 MODE1
16
16 16
GND
Jul. 12. 2011 4/19
* This specifications are subject to be changed without notice
http://www.ad-tech.co.kr
ADT6610
EQUIVALENT CIRCUIT OF INPUTS AND OUTPUTS
CKI, DI terminal
VCC
GND
DO, CKO,OUTA,OUTB,OUTC terminal
VCC
InternalSignal
CKIDI
DOCKOOUTAOUTBOUTC
GND
REXTAREXTBREXTC
InternalSignal
ReferenceCurrent
MODE0, MODE1, STSEL terminal
GND
MODE0MODE1STSEL
REXTA, REXTB, REXTC terminal
VDD VDD
Jul. 12. 2011 5/19
* This specifications are subject to be changed without notice
http://www.ad-tech.co.kr
ADT6610
ABSOLUTE MAXIMUM RATINGS (Ta = 25oC, Note1)
ELECTRICAL CHARACTERISTICS
DC CHARACTERISTICS (VDD = 5V, R=39kΩ, Ta = 25oC)
PARAMETER SYMBOL RATING UNIT
Supply Voltage VCC 0 ~ 20 V
Supply Voltage VDD 0 ~ 7 V
Output Voltage VOUT -0.5 ~ 20 V
Output Current per Output Channel IOUT 150 mA
Logic Input Voltage VIN -0.4 ~ VDD+0.4 V
GND Terminal Current IGND 320 mA
Max Power Dissipation PDMAX (SOP) 1.53 W
PDMAX (SSOP) 1.22 W
Thermal resistance ΘJA (SOP) 81.6 /W
ΘJA (SSOP) 102.3 /W
Operating Temperature Topr -40 ~ 85
Storage Temperature Tstg -55 ~ 150
Junction Temperature TJMAX 150
PARAMETER TEST CONDITION SYMBOL MIN. TYP. MAX. UNIT
VCC Supply Voltage VCC 10 15 18 V
LED Driver Output Voltage VOUT 18 V
Voltage Regulator Output Voltage VCC =10~18V VDD 4.5 5.0 5.5 V
Input Leakage Current Iz -1.0 1.0 uA
Output Leakage Current VDS=18V, All turn off Ioz 1.0 uA
Input Voltage“H” Level VIH 0.8VDD - VDD V
“L” Level VIL GND - 0.2VDD V
Output Voltage DO, CKOIOL=5mA VOL - - 0.2VDD V
IOH=-5mA VOH 0.8VDD - - V
LED Driver Output Current VDS=1.5V IOUT 60 100 mA
Pin to Pin Deviation IOUT=60mA IPP ±1.5 ±3 %
Chip to Chip Deviation IOUT=60mA ICC ±3 ±6 %
Supply Voltage Regulation IOUT=60mA, VCC =10~18V %/VCC ±0.2 ±0.5 %
Supply Current IOUT=60mA, VCC =18V ICC 4 8 mA
Note1. Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device.
Jul. 12. 2011 6/19
* This specifications are subject to be changed without notice
http://www.ad-tech.co.kr
ADT6610
TEST CIRCUIT for DC CHARACTERISTICS
VCCICC
ADT6610
OUTA
IOUT
REXTA REXTB REXTC GND
IIH, VIH
IIL, VIL
CKI
DI
VDD
C
STSEL
CKOIOL/IOH
DO
MODE0
MODE1
R R R
OUTB
OUTC
Jul. 12. 2011 7/19
* This specifications are subject to be changed without notice
http://www.ad-tech.co.kr
ADT6610
ELECTRICAL CHARACTERISTICS ( Continued )
AC CHARACTERISTICS (VDD = 5V, Ta = 25oC)
TEST CIRCUIT for AC CHARACTERISTICS
PARAMETER TEST CONDITION SYMBOL MIN. TYP. MAX. UNIT
Propagation Delay Time CKI-DO
VCC = 15VVDD = 5.0VVIH = VDD - 0.5VIL = 0.5VR = 39( IOUT = 60 )CL = 10pFRL = 200ΩVDS = 1.5V
tP - 8 20 ns
CKI Frequency fCKMAX 0.5 8 10 MHz
CKI Pulse Width tWH / tWL 15 - - ns
Data Setup Time tsetup 20 - - ns
Data Hold Time thold 30 - - ns
DI Widthtwsh 50 - - ns
twsl 50 - - ns
Clock Delay
CKO
tCKD - 8 15 ns
Clock Width tW 10 30 - ns
Clock Cycle tCY 100 - - ns
Maximum Clock Rise Time tr - - 10 ns
Maximum Clock Fall Time tf - - 10 ns
CKO, DO Output Rise Time tor - - 10 ns
CKO, DO Output Fall Time tof - - 10 ns
CKI Waiting Time for No StrobeSTSEL=Low
tst0 6 us
CKI Waiting Time for No StrobeSTSEL=High
tst0 1.5 ms
CKI Waiting Time for StrobeSTSEL=Low
tst1 20 us
CKI Waiting Time for StrobeSTSEL=High
tst1 5 ms
VCC = 15V
FunctionGeneration
VCCVCC
ADT6610
OUTA
REXTA REXTB REXTC GND
CKI
DI
VDD
4.7uF
STSEL
CKO
DO
MODE0
MODE1
R R R
OUTB
OUTC
CLRLCLRL
CLRL
CL
CL
VDS
VDS
VDS
Jul. 12. 2011 8/19
* This specifications are subject to be changed without notice
http://www.ad-tech.co.kr
ADT6610
TIMING WAVEFORM
CKI, DI, DO (Data Transmit)
trtf
H
L
H
L
CKI
DI
DO
tp
tWL
tsetup thold
tortof
H
L
tWH
CKI, CKO , Internal Strobe
CKO
H
LCKI
twH
L
50%
tCY
tCKD
90%50%
10%
90%50%10%
90%50%
10%
90%
10%
90%50%10%
InternalStrobeSignal
50%
tw
tst1
90%50%10%
tor
90%50%10%
tof
tst0
Jul. 12. 2011 9/19
* This specifications are subject to be changed without notice
http://www.ad-tech.co.kr
ADT6610
OPERATION PRINCIPLE
Interface
The ADT6610 is a two-wire only transmission interface. It is similar to SPI interface (CKI, DI). The displaydata (DI) transfers at the rising edge of the clock (CKI). And the output data (DO) is out at the falling edgeof the clock ( CKI ).
CKI
DI
Value 0 0 1 1 1 0 1 1
Setting the Gray Scale
The ADT6610 provides three selectable gray scale modes: 16bit gray scale mode, 12bit gray scale modeand 8bit gray scale mode. The 16bit gray scale mode provides 65,536 gray scales for each LED. The 12bit
gray scale mode provides 4,096 gray scales for each LED. In addition, the ADT6610 also embedded with anoscillator as the clock of PWM counter to turn on output ports according to the gray scale data sent from thesystem controller.
MODE0 pin MODE1 pin
0 0
MODE
8bit interface mode
0 1 12bit interface mode
1 0 Inhibit
1 1 16bit interface mode
Embedded Voltage Regulator
The ADT6610 has an embedded voltage regulator to regulate the high input supply voltage to 5V supply voltage for internal . The input voltage range is 10 ~ 18V, which is suitable for 12/16V system. The high supply voltage is connected the VCC, and the output of the regulator is connected to VDD. An external capacitor of 4.7uF should be connected between VDD and ground to stable the output voltage.When the input voltage is 5V, the VCC and VDD pins should be connecting.
Strobe Method
The ADT6610 provides two selectable strobe time. It is selected 20us or 5ms by STSEL pin.When the CLK high period is longer than 20us at STSEL low or 5ms at STSEL high, the gray scale data are fetched register by internal strobe signal.
STSEL pin The CKI wait time for internal strobe signal
0 20us
1 5ms
Jul. 12. 2011 10/19
* This specifications are subject to be changed without notice
http://www.ad-tech.co.kr
ADT6610
Strobe Waiting Time
CKI
STSEL=0 : 6us STSEL =1 : 1.5ms
Strobe no occurs
STSEL =0 : 20us STSEL =1 : 5ms
Strobe occursMargin period
Interface Timing Diagram for 8bit Gray Scale Mode ( MODE0=0 , MODE1 = 0)A(7:0) = C3H, B(7:0) = F8H, C(7:0) = 70H
CKI
DI
DO
ST(Internal)
20us at STSEL = 05ms at STSEL = 1
1 1 0 0 0 0 1 1 1 1 1 1 1 0 0 0 0 1 1 1 0 0 0 0
1 1 0 0
Interface Timing Diagram for 12bit Gray Scale Mode ( MODE0=1 , MODE1 = 0)A(7:0) = F03H, B(7:0) = FF8H, C(7:0) = 0F8H
CKI
DI
DO
ST(Internal) 20us at STSEL = 0
5ms at STSEL = 1
1 1 1 1 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 1 1 1 1 1 0 0 0
1 1 1 1 0 0
Interface Timing Diagram for 16bit Gray Scale Mode ( MODE0=1 , MODE1 = 1)A(7:0) = F80FH, B(7:0) = FFC0H, C(7:0) = 1F80H
CKI
DI
DO
ST(Internal) 20us at STSEL = 0
5ms at STSEL = 1
1 1 1 1 1 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 0 0 0 0 0 0 0
1 1 1 1 1 0 0 0
Jul. 12. 2011 11/19
* This specifications are subject to be changed without notice
http://www.ad-tech.co.kr
ADT6610
CONSTANT OUTPUT CURRENT ( REXT=39k )
The ADT6610 performs excellent current skew. The maximum current variation between channels is less than
±3%, and that between ICs is less than ±6%.
0
10
20
30
40
50
60
70
80
90
100
110
120
0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 2 2.2 2.4 2.6 2.8 3
VDS [V]
IOU
T [m
A]
22k
27k
30k
33k
39k
47k
56k
75k
120k
Jul. 12. 2011 12/19
* This specifications are subject to be changed without notice
http://www.ad-tech.co.kr
ADT6610
ADJUSTING OUTPUT CURRENT
The output current is determined by an external resistor. The relationship between IOUT and REXTA,REXTB,
REXTC are follows;
IOUT [A] = 2350 / REXT
REXT = REXTA, REXTB, REXTC
0
20
40
60
80
100
120
20 40 60 80 100 120 140 160
REXT [kohm]
IOU
T [m
A]
Jul. 12. 2011 13/19
* This specifications are subject to be changed without notice
http://www.ad-tech.co.kr
ADT6610
PACKAGE POWER DISSIPATION( PD )
The maximum power dissipation, , decreases as the ambient temperature increases.
0.4
0.6
0.8
1
1.2
1.4
1.6
0 10 20 30 40 50 60 70 80 90 100
Ambient Temperature []
Pow
er D
issi
patio
n [W
]
PDmax (SOP16)PDmax (SSOP16)
Safe Operation Area
JA
AJMAXMAX R
TTPD
θ
−=
Jul. 12. 2011 14/19
* This specifications are subject to be changed without notice
http://www.ad-tech.co.kr
ADT6610
LOAD SUPPLY VOLTAGE( VLED )
• •
VLED
Vf
ADT6610
RA
VDSA
The design of VLED should fulfill two targets
1. Less Power consumption and heat.2. Sufficiently headroom for the LED and driver IC to operate in the constant current region.
The power dissipation in the driver is calculated by the equation.PD = VDSA x IOUTA + VDSB x IOUTB + VDSC x IOUTC + VCC x ICC
By the spec, the max VCC = 18V, max ICC = 8mA => 144mW.If VDSA = VDSB = VDSC = 1V, IOUTA=IOUTB=IOUTC=20mA.PD is about 204mW.If VDSA,VDSB,VDSC are over 1v then the power dissipation is more than 204mW.This means, If VDSA,VDSB,VDSC drops too much voltage on the driver, it is necessaryto set external resistors( RA,RB,RC) to reduce the by VR .
VR
IOUTA IOUTB
VDSB
IOUTC
VDSC
RB RC
Jul. 12. 2011 15/19
* This specifications are subject to be changed without notice
http://www.ad-tech.co.kr
ADT6610
VLED
Strobe Time = 20us , VLED = 5V
TYPICAL APPLICATION
Strobe Time = 20us , VLED = 15V
1) 8bit Luminance Data
SystemController
Memory
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
DI
CKI
STSEL
MODE0
MODE1
REXTA
REXTB
REXTC
DO
CKO
VCC
VDD
GND
OUTA
OUTB
OUTC
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
DI
CKI
STSEL
MODE0
MODE1
REXTA
REXTB
REXTC
DO
CKO
VCC
VDD
GND
OUTA
OUTB
OUTC
VLED
SystemController
Memory
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
DI
CKI
STSEL
MODE0
MODE1
REXTA
REXTB
REXTC
DO
CKO
VCC
VDD
GND
OUTA
OUTB
OUTC
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
DI
CKI
STSEL
MODE0
MODE1
REXTA
REXTB
REXTC
DO
CKO
VCC
VDD
GND
OUTA
OUTB
OUTC
CC
Jul. 12. 2011 16/19
* This specifications are subject to be changed without notice
http://www.ad-tech.co.kr
ADT6610
VLED
Strobe Time = 5ms , VLED = 5V
Strobe Time = 5ms , VLED = 15V
SystemController
Memory
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
DI
CKI
STSEL
MODE0
MODE1
REXTA
REXTB
REXTC
DO
CKO
VCC
VDD
GND
OUTA
OUTB
OUTC
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
DI
CKI
STSEL
MODE0
MODE1
REXTA
REXTB
REXTC
DO
CKO
VCC
VDD
GND
OUTA
OUTB
OUTC
VLED
SystemController
Memory
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
DI
CKI
STSEL
MODE0
MODE1
REXTA
REXTB
REXTC
DO
CKO
VCC
VDD
GND
OUTA
OUTB
OUTC
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
DI
CKI
STSEL
MODE0
MODE1
REXTA
REXTB
REXTC
DO
CKO
VCC
VDD
GND
OUTA
OUTB
OUTC
CC
TYPICAL APPLICATION ( Continued )
2) 12bit Luminance Data
Jul. 12. 2011 17/19
* This specifications are subject to be changed without notice
http://www.ad-tech.co.kr
ADT6610
VLED
Strobe Time = 20us , VLED = 5V
Strobe Time = 5ms , VLED = 15V
SystemController
Memory
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
DI
CKI
STSEL
MODE0
MODE1
REXTA
REXTB
REXTC
DO
CKO
VCC
VDD
GND
OUTA
OUTB
OUTC
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
DI
CKI
STSEL
MODE0
MODE1
REXTA
REXTB
REXTC
DO
CKO
VCC
VDD
GND
OUTA
OUTB
OUTC
VLED
SystemController
Memory
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
DI
CKI
STSEL
MODE0
MODE1
REXTA
REXTB
REXTC
DO
CKO
VCC
VDD
GND
OUTA
OUTB
OUTC
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
DI
CKI
STSEL
MODE0
MODE1
REXTA
REXTB
REXTC
DO
CKO
VCC
VDD
GND
OUTA
OUTB
OUTC
CC
TYPICAL APPLICATION ( Continued )
3) 16bit Luminance Data
Jul. 12. 2011 18/19
* This specifications are subject to be changed without notice
http://www.ad-tech.co.kr
ADT6610
PACKAGE OUTLINE DIMENSION
SSOP16
SymbolDimenstions In Millimeters Dimensions In Inches
Min Max Min Max
A 1.350 1.750 0.053 0.069
A1 0.100 0.250 0.004 0.010
A2 1.350 1.550 0.053 0.061
b 0.200 0.300 0.008 0.012
c 0.170 0.250 0.007 0.010
D 4.700 5.100 0.185 0.200
E 3.800 4.000 0.150 0.157
E1 5.800 6.200 0.228 0.244
e 0.635 (BSC) 0.025 (BSC)
L 0.400 1.270 0.016 0.050
θ 0° 8° 0° 8°
Jul. 12. 2011 19/19
* This specifications are subject to be changed without notice
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ADT6610
SOP16
SymbolDimenstions In Millimeters Dimensions In Inches
Min Max Min Max
A 1.350 1.750 0.053 0.069
A1 0.100 0.250 0.004 0.010
A2 1.350 1.550 0.053 0.061
b 0.330 0.510 0.013 0.020
c 0.170 0.250 0.007 0.010
D 9.800 10.200 0.386 0.402
E 3.800 4.000 0.150 0.157
E1 5.800 6.200 0.228 0.244
e 1.270 (BSC) 0.050 (BSC)
L 0.400 1.270 0.016 0.050
θ 0° 8° 0° 8°